MODELING AND ASSESSMENT OF INDUSTRIAL WASTEWATER IMPACTS ON JENIN INDUSTRIAL FREE ZONE WASTEWATER TREATMENT PLANT

Simple item page
dc.contributor.authorOmran, Osama
dc.date.accessioned2025-08-03T07:42:23Z
dc.date.available2025-08-03T07:42:23Z
dc.date.issued2025-07-20
dc.description.abstractThe Jenin Industrial Free Zone Wastewater Treatment Plant (JIFZ-WWTP), primarily designed for domestic wastewater, is challenged by unregulated industrial effluents, which threaten its biological treatment processes and effluent quality. This comprehensive study evaluates the plant’s performance under varying conditions using a dynamic simulation model developed in GPS-X software (version 8.5) with the ASM1-based MANTIS framework. The model was calibrated with 728 test results collected in 2024 from the Jericho WWTP, an extended aeration facility, with adjustments for local temperature, elevation, and influent characteristics to accurately represent microbial behaviour and oxygen dynamics specific to Jenin’s conditions. Simulations were conducted for normal operations, high-load scenarios, and a shock event involving 1,000 m³ of untreated industrial wastewater. Under optimized conditions, the JIFZ-WWTP demonstrated robust pollutant removal efficiencies: TSS at 95.18%, VSS at 93.62%, COD at 89.5%, cBOD₅ at 94.32%, PO₄³⁻ at 99.88%, and TP at 66.45%, limited by particulate-bound phosphorus forms. TN removal was lower at 33.8%, constrained by insufficient anoxic conditions and limited carbon availability for denitrification. Potential enhancements include incorporating an anoxic reactor, external carbon dosing (e.g., methanol), and optimizing solids retention time to improve nitrogen removal efficiency. The plant maintained Class C effluent quality at influent flows up to 900 m³/day of industrial wastewater (matching domestic concentration) by regulating return activated sludge (RAS) at 460 m³/day and waste activated sludge (WAS) at 60 m³/day, ensuring process stability even under peak loads of 1,000 m³/day. Monte Carlo probabilistic simulations assessed effluent quality variability, revealing that 68% of scenarios met total nitrogen targets, 33% met cBOD₅ and COD standards, and 87% achieved TSS compliance, indicating sensitivity to fluctuations in industrial discharge composition and volume. A shock-load scenario highlighted the plant’s vulnerabilities, with effluent concentrations of COD (8,000 mg/L), BOD₅ (3,500 mg/L), TP (63 mg/L), TKN (37 mg/L), and TSS (510 mg/L) exceeding Palestinian regulatory limits. Biomass activity declined sharply, nitrification ceased, and solids accumulated due to washout and floc destabilization, with gradual recovery post-event. These findings emphasize the need for robust pretreatment measures. To enhance resilience, the study recommends stringent pretreatment standards for industrial contributors, including screening, pH correction, equalization, dissolved air flotation, anaerobic digestion, coagulation, flocculation, precipitation, and filtration. Real-time monitoring of influent characteristics is critical for early detection of critical loadings. Operational strategies, such as increasing WAS and chemical dosing during peak loads, alongside optimized RAS/WAS regimes, are essential to maintain biological activity and effluent quality. The JIFZ-WWTP supports sustainable water management in the Jenin Governorate by facilitating treated wastewater reuse for agricultural irrigation, conserving water, and reducing groundwater depletion. However, external financial constraints, including Israel’s annual deduction of approximately 100 million ILS from Palestinian Authority tax revenues for transboundary wastewater treatment, pose challenges to long-term sustainability.
dc.description.sponsorshipPalestinian Water Authority (PWA) through Middle East Desalination Research Center (MEDRC)
dc.identifier.urihttps://hdl.handle.net/20.500.11888/20316
dc.language.isoen
dc.publisherAn-Najah National University
dc.supervisorKhader, Abdulhaleem
dc.titleMODELING AND ASSESSMENT OF INDUSTRIAL WASTEWATER IMPACTS ON JENIN INDUSTRIAL FREE ZONE WASTEWATER TREATMENT PLANT
dc.title.alternativeنمذجة وتقييم تأثيرات المياه العادمة الصناعية على محطة معالجة المياه العادمة في منطقة جنين الصناعية الحرة
dc.typeThesis
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Natural Sciences